MESON Chess Problem Database

Problem Display
PID: 214822 (K7/2b2N2/1pr5/1P1k1PQ1/R1p5/1nPN1P2/B3Pn2/8 w - - 0 1)

Magini, Fabio

Best Problems, 2020

K7/2b2N2/1pr5/1P1k1PQ1/R1p5/1nPN1P2/B3Pn2/8

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sb4#
    • 1...Sd1
      • 2.e4#
    • 1...Sh1
      • 2.e4#
    • 1...Sh3
      • 2.e4#
    • 1...Sg4
      • 2.e4#
    • 1...Sc5
      • 2.Sb4#
      • 2.Bxc4#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Sb4#
      • 1...cxd3
        • 2.Qd4#
      • 1...Bd6
        • 2.Qe6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sxd3!
    • 1.Qf6?
      • threat
        • 2.Qxc6#
      • 1...Rc5
        • 2.Sb4#
        • 2.Qe6#
      • 1...Rd6
        • 2.Qe5#
      • 1...Re6
        • 2.Qxe6#
      • 1...Bd6
        • 2.Qe6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sa5
        • 2.Qd4#
      • 1...Rxf6!
    • 1.f6+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Ke6!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Sb4#
      • 1...Sxd3
        • 2.e4#
      • 1...cxd3
        • 2.Rd4#
      • 1...Rd6
        • 2.Qe5#
      • 1...Bd6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(f);SBLOCK::S(D)
    • S(a);N_GUARD::P(B)
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(D)
      • Vars
        • P(c);P_SPINS(b),XS(D)::QAR1(I)
        • B(g);S_CUTR(f)::QAB1(I)
        • S(b);N_GUARD,P_SPINP(c)::QAR1(I),XS(b)
      • Refutation
        • S(a);XS(D)
    • Try
      • Q(I);
      • Threat
        • QAB1(I),XR(f)
      • Vars
        • R(f);S_CUTB(g)::QAR1(I)
        • R(f);N_GUARD::QAB1(I),XR(f)
        • B(g);S_CUTR(f)::QAB1(I)
        • S(b);N_GUARD,P_SPINP(c)::QAR1(I),XS(b)
        • S(b);N_GUARD,P_SPINP(c)::QAR1(I)
      • Refutation
        • R(f);XQ(I)
    • Try
      • P(H);CHECK
      • Vars
        • B(g);N_GUARD,P_SPINB(g)::QAR1(I),XB(g)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(I);
    • Threat
      • S(D)
    • Vars
      • S(a);N_GUARD,XS(D)::P(B)
      • P(c);OGATE,P_SPINS(b),XS(D)::R1(F)
      • R(f);S_CUTB(g)::QAR1(I)
      • B(g);S_CUTR(f)::QAB1(I)
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